Memória használat - bash script

Tisztelt Kollégák!
Nagyon hiányoltam egy olyan parancsot, amely segítségével megnézhessem, hogy a futó processzeim pontosan mennyi memóriát zabálnak. Erre írtam a következő kis scriptet, akinek tetszik, használja nyugodtan:

#!/bin/bash
verzio="0.0.1"
programname=`basename $0`
wiki="w";
opcio="k";
cim="o";
if [ $# -gt 2 ]
then
echo "Usage: $programname [-x][m|k|b][p] [v|h]";
echo " The '-x' switch shows just the biggest memory consumption.";
echo " m - Megabytes, k - Kilobytes, b - bytes";
echo " p - Show PID-s only instead of full path";
echo " v - Shows version and exits.";
echo " v - This help.";
exit 1
fi

while getopts ":mkbxpvh" kapcs
do
case $kapcs in
"m") opcio="m";;
"k") opcio="k";;
"b") opcio="b";;
"x") wiki="m"; echo "Let's see, who is eating the memory...";;
"p") cim="j"; echo "Just PID-s are listed...";;
"v") echo "Memory consumption - version $verzio - by Frantique"; exit 0;;
"h") echo "";
echo "Usage: $programname [-x][m|k|b][p] [v|h]";
echo " The '-x' switch shows just the biggest memory consumption.";
echo " m - Megabytes, k - Kilobytes, b - bytes";
echo " p - Show PID-s only instead of full path";
echo " v - Shows version and exits.";
echo " v - This help.";
echo "";
exit 0;;
"?") opcio="e"; echo "Bad argument passed... Assuming Kilobytes output.";;
esac
done;

echo "Please wait, counting...";
rm -rf /tmp/putme*
pstree -p | sed s/"[^0-9]"/"\n"/g | sort | uniq > /tmp/putmeout
i=1
touch /tmp/putmeback

for a in `cat /tmp/putmeout`
do
if [ $i -ne 1 ]
then
fnev=`pmap $a | grep ":"`
if [ $cim = "j" ]
then
fnev=`echo $fnev | cut -d " " -f 1 | sed s/":"/""/g`
fi
mennyi=`pmap $a | grep "total" | sed s/"total"/""/g | sed s/" "/""/g | sed s/"K"/""/g`
if [ $mennyi ]
then
if [ $opcio = "m" ]
then
mennyi=`expr $mennyi / 1024`;
mennyi="$mennyi Mb.";
fi
if [ $opcio = "k" -o $opcio = "e" ]
then
mennyi="$mennyi Kb.";
fi
if [ $opcio = "b" ]
then
mennyi=`expr $mennyi * 1024`; mennyi="$mennyi bytes";
fi
echo "$mennyi ---> PID $fnev" >> /tmp/putmeback;
fi
fi
i=0;
done

if [ $wiki = 'm' ]
then
echo "-------------------------------------------------------"
cat /tmp/putmeback | uniq | sort -n | tail -n 1
rm -rf /tmp/putme*
echo "-------------------------------------------------------"

exit 0
fi
cat /tmp/putmeback | uniq | sort -n
rm -rf /tmp/putme*
exit 0